EP1014045B1 - Pointer instrument - Google Patents

Pointer instrument Download PDF

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Publication number
EP1014045B1
EP1014045B1 EP99124790A EP99124790A EP1014045B1 EP 1014045 B1 EP1014045 B1 EP 1014045B1 EP 99124790 A EP99124790 A EP 99124790A EP 99124790 A EP99124790 A EP 99124790A EP 1014045 B1 EP1014045 B1 EP 1014045B1
Authority
EP
European Patent Office
Prior art keywords
pointer
disc
instrument according
lead
pointer instrument
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99124790A
Other languages
German (de)
French (fr)
Other versions
EP1014045A1 (en
Inventor
Bernd Ludewig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19916221A external-priority patent/DE19916221A1/en
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1014045A1 publication Critical patent/EP1014045A1/en
Application granted granted Critical
Publication of EP1014045B1 publication Critical patent/EP1014045B1/en
Anticipated expiration legal-status Critical
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D13/00—Component parts of indicators for measuring arrangements not specially adapted for a specific variable
    • G01D13/22—Pointers, e.g. settable pointer
    • G01D13/28—Pointers, e.g. settable pointer with luminescent markings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/50—Instruments characterised by their means of attachment to or integration in the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/60—Instruments characterised by their location or relative disposition in or on vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/28—Structurally-combined illuminating devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/07—Indicating devices, e.g. for remote indication
    • G01P1/08—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
    • B60K2360/33—Illumination features

Definitions

  • the invention relates to a pointer instrument, in particular for a vehicle with a light source illuminable disc pointer, the disc pointer in particular circular or annular is.
  • the pointer axis is non-rotatably connected to the pointer instrument and has one comparatively large diameter so that on an end face of the disc pointer, for example further display designed as a liquid crystal display easy to read for a viewer in the center of the pointer instrument can be attached.
  • DE-2 9622834U includes a flexible film Conductor tracks for contacting illuminants and from EP-A-811 827 a Contacting film for connecting a lamp known.
  • the invention is based on the problem of a pointer instrument of the type mentioned to be designed in such a way that the line is simple and at the same time protected against damage can be arranged.
  • this problem is solved in that the disc pointer is connected to a flexible line which at least approximately concentrically curved the disc pointer runs and two through a 180 ° bend connected, spaced one above the other Has leg, the first leg so against a back the disc pointer rests and the second leg in such a way with an axial distance to the disc pointer on a rear Component of the pointer instrument is fixed that the line when the disc pointer pivots unrolled on the back.
  • the line can also easily be used with a disc pointer on its Scope is stored and therefore no central axis or Has wave. The one from the wire by bending generated and acting on the disc pointer restoring forces are small.
  • Paragraph can be executed as a stop and for example additionally be provided with an inclined surface that the Place the cable against the back of the disc pointer simplified and enables precise guidance.
  • a particularly suitable further training is the Invention given that the disc pointer has arranged on its rear groove, in which the line is present.
  • the cable is optimally protected against damage and in turn does not hinder the function of the Disc pointer.
  • this further education enables a space-saving version, in which the line in the Groove can be inserted recessed.
  • the groove can be additional Insertion aids, for example inclined surfaces or chamfers, thereby leading the line can be further improved.
  • a particularly advantageous embodiment of the invention is also given by the fact that the line is one on one Foil applied electrical conductor track is.
  • the line is only very small Thickness and at the same time has a high flexibility, which in be different in different directions can. Therefore, the otherwise can adhere to a exact movement path required guide elements largely eliminated.
  • the conductor track can for example also contacted directly at one end with the light source his.
  • the light source a in a decentrally arranged recess of the Disk pointer inserted LED is. hereby an extremely flat design of the disc pointer becomes possible, wherein the light-emitting diode is only of a translucent Pointer flag needs to be covered. At the same time, the central area of the disc pointer remains free of components and can be used for further displays can be used optimally.
  • the line is designed as a light guide.
  • This can Light one in the rear area of the pointer instrument arranged light source coupled into the light guide and coupled out at the front of the disc pointer become.
  • the light guide can also be in a Overlap the light coupling surface of the pointer flag, so that the number of components required is reduced can be, in particular on the disc pointer no light source has to be provided.
  • the light source can also be used to illuminate various displays radiate into several light guides.
  • the rear Component is a circuit board. This allows the line contacted directly or connected to a light source become. Simplified, for example known zero force plug assembly and enables an effortless exchange when servicing.
  • disc pointer in the is essentially transparent and at its Rear section in the area of the line that can be applied with a reduced transmission.
  • the section can do this with, for example provided with a coating or a structural surface his.
  • This section with reduced transmission is a particularly advantageous training of the invention achieved in that the section is designed as an annular recess and thus effortlessly in a joint processing step with the Heel or the groove can be attached.
  • Figure 1 shows a perspective view for example in a combination instrument of a motor vehicle built-in pointer instrument 1.
  • the pointer instrument 1 has one between three guide rollers 2 mounted disc pointer 3, which by means of a pointer drive 4 is rotatable.
  • the pointer drive 4 can e.g. a driven by a stepper motor Be gear that in the circumference of the disc pointer 3rd arranged teeth for transmitting a rotary movement intervenes.
  • a light source 6 On one that is visible to a viewer Front 5 of the circular disc pointer 3 is a light source 6 in the form of a light-emitting diode Recess 7 used.
  • To power the Light source 6 is a flexible line 8.
  • This as Concentrically curved conductor track 8 has a 180 ° bend 9, one in FIG. 1 only partially visible, against a back 11 of the disc pointer 3 adjacent first leg 10 with one against a rear component 13 of the Pointer instrument 1 and by means of this a connector 14 contacted second leg 12 connects.
  • Figure 2 shows the pointer instrument 1 in a simplified illustrated top view. You can see the three in guide rollers 2 distributed approximately evenly around the circumference, the one for storing the circular and essentially serve transparent disc pointer 3. To compensate for Tolerances and thermal expansion is one of the leading roles 2 arranged on a swing arm 15 and by means of a Spring element, not shown, compared to the Target 3 biased. Since Figure 2 is only one Schematic diagram shows the difference here Arrangement of the pointer drive 4 and the guide rollers 2 with and without the swing arm 15 to each other somewhat of the representation in Figure 1, but with the technical function is identical.
  • the pointer drive 4 engages in the disc pointer 3 a.
  • a coaxial groove running in its rear 11 16 can be seen, against the bottom of which the groove in FIG shown line 8 rests and towards the center is limited by a paragraph 17.
  • the disc pointer 3 On the front 5 the disc pointer 3 is the recess 7 for the Light source 6 arranged for irradiation in a only shown as an example by a dashed line Pointer flag 18 is executed.
  • the disc pointer shown only in sections 3 shows FIG. 3 in a sectional side view.
  • the groove 16 is on the rear 11 of the disk pointer 3 to recognize against which with the angle a compared to the Disc pointer 3 inclined inclined surface 19, not shown Line can be created.
  • In one to the middle of the Disc pointer 3 pointing area of paragraph 17 of The disc pointer 3 has a groove 16 as a depression executed section 20 of reduced transmission. The depression causes a reflection so that the in the groove 16 inserted line through the front 5 of the Disk pointer 3 is invisible to a viewer.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Measuring Devices (AREA)
  • Indicating Measured Values (AREA)

Description

Die Erfindung betrifft ein Zeigerinstrument, insbesondere für ein Fahrzeug, mit einem mittels einer Lichtquelle beleuchtbaren Scheibenzeiger, wobei der Scheibenzeiger insbesondere kreis- oder kreisringförmig ausgeführt ist.The invention relates to a pointer instrument, in particular for a vehicle with a light source illuminable disc pointer, the disc pointer in particular circular or annular is.

Ein solches Zeigerinstrument, bei dem der Scheibenzeiger um eine unbewegliche Zeigerachse schwenkbar ausgeführt ist und bei dem die Zeigerfahne als Markierung auf dem Scheibenzeiger aufgebracht ist, wird heute vor allem in der Fahrzeugindustrie zunehmend eingesetzt und gehört somit zum Stand der Technik.Such a pointer instrument in which the disc pointer designed to be pivotable about an immovable pointer axis and with the pointer flag as a marker on the Disc pointer is applied today, especially in increasingly used in the automotive industry and therefore belongs the state of the art.

Bei einem solchen Zeigerinstrument ist die Zeigerachse drehfest mit dem Zeigerinstrument verbunden und weist einen vergleichsweise großen Durchmesser auf, so dass auf einer Stirnfläche des Scheibenzeigers beispielsweise eine als Flüssigkristallanzeige ausgeführte weitere Anzeige für einen Betrachter gut ablesbar im Zentrum des Zeigerinstrumentes angebracht werden kann. In such a pointer instrument, the pointer axis is non-rotatably connected to the pointer instrument and has one comparatively large diameter so that on an end face of the disc pointer, for example further display designed as a liquid crystal display easy to read for a viewer in the center of the pointer instrument can be attached.

Es sind weiterhin Ausführungsformen eines solchen Zeigerinstrumentes bekannt, bei denen der beispielsweise ringförmige Scheibenzeiger am Umfang gelagert ist und somit auch die zentrale Zeigerachse entfällt.There are further embodiments of such a pointer instrument known in which the ring, for example Disk pointer is stored on the circumference and thus the central pointer axis is also eliminated.

Während die flexible Leitung bei konventionellen Zeigerinstrumenten mit einer eine Zeigerfahne auslenkenden Zeigerwelle spiralförmig um die Zeigerwelle geführt wird und dadurch von dieser beim Auslenken des Zeigers auf- bzw. abgewickelt wird, ist dies bei einer der vorstehenden Ausführungsformen nur unzureichend realisierbar.While the flexible line in conventional pointer instruments with a pointer shaft deflecting a pointer flag is spiraled around the pointer shaft and thereby up or out of it when the pointer is deflected is carried out, this is one of the above Embodiments can only be implemented inadequately.

Dabei erweist sich bei einer am Umfang des Scheibenzeigers verlegten Leitung als nachteilig, dass bei der Auslenkung des Scheibenzeigers eine große Längendifferenz der Leitung ausgeglichen werden muss. Zugleich muss die Übertragung von Rückstellkräften von der Leitung auf den Scheibenzeiger ausgeschlossen werden, so dass zusätzliche Maßnahmen wie beispielsweise eine mehrfache spiralförmige Wicklung vorgesehen werden müssen. Dadurch ist sowohl der Platzbedarf als auch der Herstellungsaufwand relativ groß.It turns out to be on the circumference of the disc pointer misplaced line as a disadvantage that in the deflection the disc pointer has a large difference in length the line must be balanced. At the same time, the Transfer of restoring forces from the line to the Disc pointers are excluded, so additional Measures such as a multiple spiral Winding must be provided. This makes both Space requirements as well as the manufacturing effort relative large.

Bei einer Ausführungsform, bei der die Leitung im wesentlichen frei durch den Raum zwischen dem Scheibenzeiger und den darunter liegenden Bauteilen verlegt ist, erweist es sich demgegenüber als nachteilig, dass es dadurch bei einer Schwenkbewegung des Scheibenzeigers leicht zu einer Verklemmung oder Beschädigung kommen kann. In one embodiment where the conduit is essentially freely through the space between the disc pointer and the components underneath are laid on the other hand, it is disadvantageous that a pivotal movement of the disc pointer easily to one Jamming or damage can occur.

Aus US-A-5 201 277 ist weiter ein Zeigerinstrument mit einem mittels einer Lichtquelle beleuchtbaren Scheibenzeiger bekannt. Aus DE-2 9622834U ist eine flexible Folie mit Leiterbahnen zur Kontaktierung von Leuchtmittel und aus EP-A-811 827 eine Kontaktierungsfolie zur Verbindung eines Leuchtmittels bekannt.From US-A-5 201 277 there is also a pointer instrument with a light source Illuminated disc pointer known. DE-2 9622834U includes a flexible film Conductor tracks for contacting illuminants and from EP-A-811 827 a Contacting film for connecting a lamp known.

Der Erfindung liegt das Problem zugrunde, ein Zeigerinstrument der eingangs genannten Art so zu gestalten, dass die Leitung einfach und zugleich vor Beschädigungen geschützt angeordnet werden kann. The invention is based on the problem of a pointer instrument of the type mentioned to be designed in such a way that the line is simple and at the same time protected against damage can be arranged.

Dieses Problem wird erfindungsgemäß dadurch gelöst, dass der Scheibenzeiger mit einer flexiblen Leitung verbunden ist, die zumindest in etwa konzentrisch gekrümmt zu dem Scheibenzeiger verläuft und zwei durch eine 180°-Umbiegung verbundene, mit Abstand übereinander verlaufende Schenkel hat, wobei der erste Schenkel derart gegen eine Rückseite des Scheibenzeigers anliegt und der zweite Schenkel derart mit axialem Abstand zu dem Scheibenzeiger an einem rückwärtigen Bauelement des Zeigerinstrumentes fixiert ist dass die Leitung bei einer Schwenkbewegung des Scheibenzeigers auf dessen Rückseite abgerollt wird.According to the invention, this problem is solved in that the disc pointer is connected to a flexible line which at least approximately concentrically curved the disc pointer runs and two through a 180 ° bend connected, spaced one above the other Has leg, the first leg so against a back the disc pointer rests and the second leg in such a way with an axial distance to the disc pointer on a rear Component of the pointer instrument is fixed that the line when the disc pointer pivots unrolled on the back.

Hierdurch wird die Leitung bei der Schwenkbewegung des Scheibenzeigers auf dessen Rückseite abgerollt, so dass einerseits eine exakte Bewegungsbahn ohne das Risiko einer Beschädigung vorgegeben wird, andererseits der Platzbedarf sehr gering ist. Durch die konzentrische Krümmung der Leitung folgt diese der durch die Schwenkbewegung des Scheibenzeigers vorgegebenen Kreisbahn. Es entstehen daher keine Querkräfte in Richtung der Mitte des Scheibenzeigers, die zu einem Verrutschen der Leitung an der Rückseite des Scheibenzeigers führen könnten. Dabei wird insbesondere der zentrale Bereich sowie der Umfang des Scheibenzeigers durch den Verlauf der Leitung nicht eingeschränkt.As a result, the line during the pivoting movement of the Unrolled disc pointer on the back, so that on the one hand an exact movement path without the risk of Damage is specified, on the other hand, the space required is very low. Because of the concentric curvature the line follows this by the swiveling movement of the Disk pointer predetermined circular path. It therefore arises no lateral forces in the direction of the center of the disc pointer, which leads to a slipping of the line on the Back of the disc pointer. Doing so in particular the central area and the scope of the Disc pointer not restricted by the course of the line.

Durch diese Ausführung kann die Leitung problemlos auch bei einem Scheibenzeiger verwendet werden, der an seinem Umfang gelagert ist und daher keine zentrale Achse oder Welle aufweist. Die von der Leitung durch das Umbiegen erzeugten und auf den Scheibenzeiger wirkenden Rückstellkräfte sind dabei gering.With this design, the line can also easily be used with a disc pointer on its Scope is stored and therefore no central axis or Has wave. The one from the wire by bending generated and acting on the disc pointer restoring forces are small.

Eine andere besonders vorteilhafte Ausführungsform der Erfindung ist auch dann gegeben, wenn an der Rückseite des Scheibenzeigers ein Absatz angeordnet ist, gegen den die Leitung mit einer zur Mitte des Scheibenzeigers weisenden Seite anliegt. Another particularly advantageous embodiment of the Invention is also given when on the back the disc pointer has a paragraph against which the line with one pointing towards the center of the disc pointer Side is applied.

Dieser Absatz erstreckt sich zumindest entsprechend der maximalen Auslenkung des Scheibenzeigers und verhindert so ein Verrutschen der Leitung zur Mitte hin. Der Absatz kann hierzu als Anschlag ausgeführt und beispielsweise zusätzlich mit einer Schrägfläche versehen sein, die das Anlegen der Leitung gegen die Rückseite des Scheibenzeigers vereinfacht und eine exakte Führung ermöglicht.This paragraph extends at least according to the maximum deflection of the disc pointer and prevented such a slipping of the line towards the middle. Paragraph can be executed as a stop and for example additionally be provided with an inclined surface that the Place the cable against the back of the disc pointer simplified and enables precise guidance.

Dabei ist eine besonders gut geeignete Weiterbildung der Erfindung dadurch gegeben, dass der Scheibenzeiger eine an seiner Rückseite angeordnete Nut aufweist, in welcher die Leitung anliegt.A particularly suitable further training is the Invention given that the disc pointer has arranged on its rear groove, in which the line is present.

Dadurch ist die Leitung gegen Beschädigungen optimal geschützt und behindert ihrerseits nicht die Funktion des Scheibenzeigers. Zugleich ermöglicht diese Weiterbildung eine platzsparende Ausführung, bei der die Leitung in der Nut zurückgesetzt einlegbar ist. Hierzu kann die Nut zusätzliche Einführhilfen, beispielsweise Schrägflächen oder Fasen, aufweisen, wodurch die Führung der Leitung weiter verbessert werden kann.As a result, the cable is optimally protected against damage and in turn does not hinder the function of the Disc pointer. At the same time, this further education enables a space-saving version, in which the line in the Groove can be inserted recessed. For this, the groove can be additional Insertion aids, for example inclined surfaces or chamfers, thereby leading the line can be further improved.

Eine besonders vorteilhafte Ausführungsform der Erfindung ist auch dadurch gegeben, dass die Leitung eine auf einer Folie aufgebrachte elektrische Leiterbahn ist.A particularly advantageous embodiment of the invention is also given by the fact that the line is one on one Foil applied electrical conductor track is.

Dadurch weist die Leitung eine lediglich sehr geringe Dicke auf und hat zugleich eine hohe Flexibilität, die in unterschiedlichen Richtungen verschieden ausgeprägt sein kann. Daher können die anderenfalls zur Einhaltung einer exakten Bewegungsbahn erforderlichen Führungselemente weitgehend entfallen. Die Leiterbahn kann beispielsweise auch an einem Ende mit der Lichtquelle unmittelbar kontaktiert sein. As a result, the line is only very small Thickness and at the same time has a high flexibility, which in be different in different directions can. Therefore, the otherwise can adhere to a exact movement path required guide elements largely eliminated. The conductor track can for example also contacted directly at one end with the light source his.

Besonders vorteilhaft ist es dabei auch, wenn die Lichtquelle eine in eine dezentral angeordnete Ausnehmung des Scheibenzeigers eingesetzte Leuchtdiode ist. Hierdurch wird eine extrem flache Bauweise des Scheibenzeigers möglich, wobei die Leuchtdiode lediglich von einer lichtdurchlässigen Zeigerfahne abgedeckt zu werden braucht. Zugleich bleibt der zentrale Bereich des Scheibenzeigers frei von Bauelementen und kann so für weitere Anzeigen optimal genutzt werden.It is also particularly advantageous if the light source a in a decentrally arranged recess of the Disk pointer inserted LED is. hereby an extremely flat design of the disc pointer becomes possible, wherein the light-emitting diode is only of a translucent Pointer flag needs to be covered. At the same time, the central area of the disc pointer remains free of components and can be used for further displays can be used optimally.

Eine andere besonders effektive Ausführungsform der Erfindung ist hingegen auch dadurch erreicht, dass die Leitung als Lichtleiter ausgeführt ist. Hierdurch kann das Licht einer im rückwärtigen Bereich des Zeigerinstrumentes angeordneten Lichtquelle in den Lichtleiter eingekoppelt und an der Vorderseite des Scheibenzeigers ausgekoppelt werden. Der Lichtleiter kann dabei auch in eine als Zeigerfahne ausgeführte Lichtauskoppelfläche übergehen, so dass die Anzahl der erforderlichen Bauteile reduziert werden kann, wobei insbesondere an dem Scheibenzeiger keine Lichtquelle vorgesehen werden muss. Die Lichtquelle kann zugleich auch zur Beleuchtung verschiedener Anzeigen in mehrere Lichtleiter einstrahlen.Another particularly effective embodiment of the invention is also achieved, however, that the line is designed as a light guide. This can Light one in the rear area of the pointer instrument arranged light source coupled into the light guide and coupled out at the front of the disc pointer become. The light guide can also be in a Overlap the light coupling surface of the pointer flag, so that the number of components required is reduced can be, in particular on the disc pointer no light source has to be provided. The light source can also be used to illuminate various displays radiate into several light guides.

Besonders sinnvoll ist es auch, wenn das rückwärtige Bauelement eine Leiterplatte ist. Dadurch kann die Leitung unmittelbar kontaktiert bzw. an eine Lichtquelle angeschlossen werden. Dabei vereinfacht beispielsweise ein an sich bekannter Nullkraftstecker die Montage und ermöglicht im Servicefall einen mühelosen Austausch.It is particularly useful if the rear Component is a circuit board. This allows the line contacted directly or connected to a light source become. Simplified, for example known zero force plug assembly and enables an effortless exchange when servicing.

Eine andere besonders zweckmäßige Ausgestaltung der Erfindung ist dadurch gegeben, dass der Scheibenzeiger im wesentlichen transparent ausgeführt ist und an seiner Rückseite im Bereich der anlegbaren Leitung einen Abschnitt mit einer verminderten Transmission aufweist. Another particularly useful embodiment of the invention is given by the fact that the disc pointer in the is essentially transparent and at its Rear section in the area of the line that can be applied with a reduced transmission.

Hierdurch kann die insbesondere bei einer Auslenkung des Scheibenzeigers gegen die Rückseite des Scheibenzeigers anliegende Leitung von einem Betrachter nicht wahrgenommen werden. Der Abschnitt kann hierzu beispielsweise mit einer Beschichtung oder einer Strukturfläche versehen sein.As a result, the deflection of the Disc pointer against the back of the disc pointer adjacent line not perceived by a viewer become. The section can do this with, for example provided with a coating or a structural surface his.

Dieser eine verminderte Transmission aufweisende Abschnitt wird bei einer besonders vorteilhaften Weiterbildung der Erfindung dadurch erreicht, dass der Abschnitt als kreisringförmige Ausnehmung ausgeführt ist und somit mühelos in einem gemeinsamen Bearbeitungsschritt mit dem Absatz oder der Nut angebracht werden kann.This section with reduced transmission is a particularly advantageous training of the invention achieved in that the section is designed as an annular recess and thus effortlessly in a joint processing step with the Heel or the groove can be attached.

Die Erfindung lässt verschiedene Ausführungsformen zu. Zur weiteren Verdeutlichung ihres Grundprinzips ist eine davon in der Zeichnung dargestellt und wird nachfolgend beschrieben. Diese zeigt in

Fig. 1
eine perspektivische Darstellung eines erfindungsgemäßen Zeigerinstrumentes,
Fig. 2
eine Draufsicht auf das Zeigerinstrument in einer vergrößerten Prinzipdarstellung,
Fig. 3
eine geschnittene Seitenansicht eines Scheibenzeigers des Zeigerinstrumentes.
The invention allows various embodiments. To further clarify its basic principle, one of these is shown in the drawing and is described below. This shows in
Fig. 1
2 shows a perspective illustration of a pointer instrument according to the invention,
Fig. 2
3 shows a plan view of the pointer instrument in an enlarged basic illustration,
Fig. 3
a sectional side view of a disc pointer of the pointer instrument.

Figur 1 zeigt in einer perspektivischen Darstellung ein beispielsweise in ein Kombinationsinstrument eines Kraftfahrzeuges einbaubares Zeigerinstrument 1. Das Zeigerinstrument 1 hat einen zwischen drei Führungsrollen 2 gelagerten Scheibenzeiger 3, welcher mittels eines Zeigerantriebes 4 verdrehbar ist. Der Zeigerantrieb 4 kann z.B. ein mittels eines Schrittmotors angetriebenes Zahnrad sein, das in am Umfang des Scheibenzeigers 3 angeordnete Zähne zur Übertragung einer Drehbewegung eingreift. Auf einer für einen Betrachter sichtbaren Vorderseite 5 des kreisförmigen Scheibenzeigers 3 ist eine als Leuchtdiode ausgeführte Lichtquelle 6 in eine Ausnehmung 7 eingesetzt. Zur Energieversorgung der Lichtquelle 6 dient eine flexible Leitung 8. Diese als konzentrisch gekrümmte Leiterbahn ausgeführte Leitung 8 hat eine 180°-Umbiegung 9, die einen in der Figur 1 lediglich teilweise sichtbaren, gegen eine Rückseite 11 des Scheibenzeigers 3 anliegenden ersten Schenkel 10 mit einem gegen ein rückwärtiges Bauelement 13 des Zeigerinstrumentes 1 anliegenden und an diesem mittels einer Steckverbindung 14 kontaktierten zweiten Schenkel 12 verbindet.Figure 1 shows a perspective view for example in a combination instrument of a motor vehicle built-in pointer instrument 1. The pointer instrument 1 has one between three guide rollers 2 mounted disc pointer 3, which by means of a pointer drive 4 is rotatable. The pointer drive 4 can e.g. a driven by a stepper motor Be gear that in the circumference of the disc pointer 3rd arranged teeth for transmitting a rotary movement intervenes. On one that is visible to a viewer Front 5 of the circular disc pointer 3 is a light source 6 in the form of a light-emitting diode Recess 7 used. To power the Light source 6 is a flexible line 8. This as Concentrically curved conductor track 8 has a 180 ° bend 9, one in FIG. 1 only partially visible, against a back 11 of the disc pointer 3 adjacent first leg 10 with one against a rear component 13 of the Pointer instrument 1 and by means of this a connector 14 contacted second leg 12 connects.

Figur 2 zeigt das Zeigerinstrument 1 in einer vereinfacht dargestellten Draufsicht. Zu erkennen sind die drei in etwa gleichmäßig am Umfang verteilten Führungsrollen 2, die zur Lagerung des kreisförmigen und im wesentlichen transparenten Scheibenzeigers 3 dienen. Zum Ausgleich von Toleranzen und Wärmedehnungen ist eine der Führungsrollen 2 an einem Schwingarm 15 angeordnet und mittels eines nicht dargestellten Federelementes gegenüber dem Scheibenzeiger 3 vorgespannt. Da Figur 2 lediglich eine Prinzipdarstellung zeigt, unterscheidet sich hier die Anordnung des Zeigerantriebs 4 und der Führungsrollen 2 mit und ohne Schwingarm 15 zueinander etwas von der Darstellung in Figur 1, wobei jedoch die technische Funktion identisch ist.Figure 2 shows the pointer instrument 1 in a simplified illustrated top view. You can see the three in guide rollers 2 distributed approximately evenly around the circumference, the one for storing the circular and essentially serve transparent disc pointer 3. To compensate for Tolerances and thermal expansion is one of the leading roles 2 arranged on a swing arm 15 and by means of a Spring element, not shown, compared to the Target 3 biased. Since Figure 2 is only one Schematic diagram shows the difference here Arrangement of the pointer drive 4 and the guide rollers 2 with and without the swing arm 15 to each other somewhat of the representation in Figure 1, but with the technical function is identical.

Weiterhin greift der Zeigerantrieb 4 in den Scheibenzeiger 3 ein. Durch den transparenten Scheibenzeiger 3 ist eine in seiner Rückseite 11 verlaufende, koaxiale Nut 16 zu erkennen, gegen deren Nutengrund die in Figur 1 dargestellte Leitung 8 anliegt und die zur Mitte hin durch einen Absatz 17 begrenzt ist. An der Vorderseite 5 des Scheibenzeigers 3 ist die Ausnehmung 7 für die Lichtquelle 6 angeordnet, die zum Einstrahlen in eine lediglich beispielhaft durch eine gestrichelte Linie dargestellte Zeigerfahne 18 ausgeführt ist.Furthermore, the pointer drive 4 engages in the disc pointer 3 a. Through the transparent disc pointer 3 is a coaxial groove running in its rear 11 16 can be seen, against the bottom of which the groove in FIG shown line 8 rests and towards the center is limited by a paragraph 17. On the front 5 the disc pointer 3 is the recess 7 for the Light source 6 arranged for irradiation in a only shown as an example by a dashed line Pointer flag 18 is executed.

Den lediglich abschnittsweise dargestellten Scheibenzeiger 3 zeigt Figur 3 in einer geschnittenen Seitenansicht. An der Rückseite 11 des Scheibenzeigers 3 ist die Nut 16 zu erkennen, gegen deren mit dem Winkel a gegenüber dem Scheibenzeiger 3 geneigte Schrägfläche 19 die nicht dargestellte Leitung anlegbar ist. In einem zur Mitte des Scheibenzeigers 3 weisenden Bereich des Absatzes 17 der Nut 16 weist der Scheibenzeiger 3 einen als Vertiefung ausgeführten Abschnitt 20 verminderter Transmission auf. Die Vertiefung verursacht eine Reflexion, so dass die in die Nut 16 eingelegte Leitung durch die Vorderseite 5 des Scheibenzeigers 3 für einen Betrachter unsichtbar ist.The disc pointer shown only in sections 3 shows FIG. 3 in a sectional side view. The groove 16 is on the rear 11 of the disk pointer 3 to recognize against which with the angle a compared to the Disc pointer 3 inclined inclined surface 19, not shown Line can be created. In one to the middle of the Disc pointer 3 pointing area of paragraph 17 of The disc pointer 3 has a groove 16 as a depression executed section 20 of reduced transmission. The depression causes a reflection so that the in the groove 16 inserted line through the front 5 of the Disk pointer 3 is invisible to a viewer.

Durch die beschriebene Gestaltung des Zeigerinstrumentes 3 ist eine exakte Führung der Leitung 8 in der Nut 16 möglich. Zugleich ist der Platzbedarf dieser Anordnung ebenso wie durch die Leitung auf den Scheibenzeiger 3 wirkenden Rückstellkräfte gering.Through the described design of the pointer instrument 3 is an exact guidance of the line 8 in the groove 16 possible. At the same time, the space requirement of this arrangement as well as through the line on the disc pointer 3 acting restoring forces low.

Claims (9)

  1. Pointer instrument, especially for a vehicle, having a disc pointer which can be illuminated by a light source, the disc pointer being designed in particular like a circle or circular ring, characterized in that the disc pointer is connected to a flexible lead (8) which runs at least approximately concentrically curved in relation to the disc pointer (3) and has two legs (10, 12) joined by a 180° bend (9) and running at a distance above each other, the first leg (10) resting in such a manner against a rear (11) of the disc pointer (3) and the second leg (12) being fixed in such a manner to a rear component (13) of the pointer instrument (1), with an axial spacing from the disc pointer (3), that the lead (8) is unrolled on the rear (11) of the disc pointer (3) during a pivoting movement thereof.
  2. Pointer instrument according to Claim 1, characterized in that there is arranged on the rear (11) of the disc pointer (3) a ledge (17), against which the lead (8) rests with one side pointing towards the centre of the disc pointer (3).
  3. Pointer instrument according to claim 1 or 2, characterized in that the disc pointer (3) has a groove (16) which is arranged on its rear (11) and in which the lead (8) rests.
  4. Pointer instrument according to one of the preceding claims, characterized in that the lead (8) is an electric conductor track applied to a film.
  5. Pointer instrument according to one of the preceding claims, characterized in that the light source (6) is a light-emitting diode inserted into a recess (7) arranged off-centre in the disc pointer (3).
  6. Pointer instrument according to one of the preceding claims, characterized in that the lead (8) is designed as an optical waveguide.
  7. Pointer instrument according to one of the preceding claims, characterized in that the rear component (13) is a printed circuit board.
  8. Pointer instrument according to one of the preceding claims, characterized in that the disc pointer (3) is designed to be essentially transparent and, on its rear (11), in the area of the lead (8) which can be placed on it, has a section (20) with a reduced transmission.
  9. Pointer instrument according to Claim 8, characterized in that the section (20) is designed s an annular recess.
EP99124790A 1998-12-22 1999-12-14 Pointer instrument Expired - Lifetime EP1014045B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19859339 1998-12-22
DE19859339 1998-12-22
DE19916221 1999-04-10
DE19916221A DE19916221A1 (en) 1998-12-22 1999-04-10 pointer instrument

Publications (2)

Publication Number Publication Date
EP1014045A1 EP1014045A1 (en) 2000-06-28
EP1014045B1 true EP1014045B1 (en) 2003-03-26

Family

ID=26050940

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99124790A Expired - Lifetime EP1014045B1 (en) 1998-12-22 1999-12-14 Pointer instrument

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US (1) US6408783B1 (en)
EP (1) EP1014045B1 (en)
JP (1) JP4727783B2 (en)
ES (1) ES2195498T3 (en)

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Also Published As

Publication number Publication date
ES2195498T3 (en) 2003-12-01
JP4727783B2 (en) 2011-07-20
EP1014045A1 (en) 2000-06-28
JP2000186948A (en) 2000-07-04
US6408783B1 (en) 2002-06-25

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